/**
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

/*
** \file TreeAttribute.h
** \version $Id: TreeAttribute.h 24 2009-10-28 05:30:51Z rigdern $
*/

#ifndef _TREEATTRIBUTE_H
#define _TREEATTRIBUTE_H

#include "BasicAttribute.h"
#include <map>

class TreeAttribute : public BasicAttribute
{
public:
  TreeAttribute(std::string columnName);
  ~TreeAttribute();
  
  unsigned int height() const;
  void generalizeString(std::string& value, unsigned int level);

protected:
  struct Node
  {
    std::string name;
    unsigned int depth;
    Node* parent;
    
    Node(const std::string& inName, Node* inParent)
      : name(inName),
        depth(inParent ? inParent->depth+1 : 0),
        parent(inParent)
    {}
  };
  Node* addNode(const std::string& nodeName, Node* parent=NULL);

private:
  Node* _root;
  unsigned int _height;
  std::map<std::string, Node*> _nodeMap;
};

#endif
